Removing
1. Disconnect the negative cable from the battery.
Warning! If your vehicle has an anti-theft audio system, make sure you have the unlock code before disconnecting the battery.
2. Remove the cylinder head cover (see paragraph 4).
3. Remove spark plugs from cylinders (see chapter 1).
4. Loosen the water pump pulley bolts (rice, 6 4), Remove the power steering pump, compressor and alternator drive belts (see chapter 1). Remove the water pump pulley.
5. Chock the rear wheels and apply the parking brake. Raise the front of the car and place it on jack stands.
6. Remove the front right wheel.
7. Remove the right front locker.
8. Remove the crankshaft pulley (see paragraph 11).
9. Support the engine from below with a jack. Place a piece of wood on top of the cart to prevent denting the engine pan. Raise the cart to bear the weight of the power unit and remove the left engine mount (see paragraph 16).
Caution: The engine must be propped up during the entire operation Make sure the lifting equipment is secure.
10. Turn out bolts of fastening of the top cover of a gear belt and remove a cover with a tube of an oil dipstick (fig 6.10).
11. Remove the bottom timing belt cover (pic. 6.11).
12. Temporarily screw in the crankshaft pulley bolt and turn the crankshaft until the alignment marks on the crankshaft and camshaft sprockets are aligned (Figure 6.12, a-c).
13. If you intend to continue using the old belt, mark it with respect to the sprockets and put an arrow on it showing the direction of rotation (pic. 6.13).
14. There is a special fixture. which is inserted between the camshaft sprockets and stops them from rotating. This device facilitates the procedure, since it does not allow the camshafts to turn under the action of the valve springs.
Note. This work can be done without the specified device, but you will experience inconvenience when installing the belt, since you will need to tighten the sprockets a little until the marks are aligned and hold them in this position until the belt is put on. Doing it alone is difficult.
15. Release belt tension (pic. 6.15).
16. Remove a gear belt.
17. If necessary, you can remove the crankshaft sprocket by pressing it with two pry bars or strong screwdrivers from the engine crankcase. Before removing the sprocket, remove the crankshaft position sensor.
18. If necessary, you can remove the sprockets from the camshafts. When unscrewing the sprocket mounting bolts, hold the camshaft from turning with a second key on the hexagon on the shaft (pic. 6.19). Asterisks on the front surface are labeled: "I" - for the intake shaft and "E" - for graduation.
Inspection
Warning! Do not bend, twist or twist the belt. Keep oil, fuel and coolant away from it. Do not use belt tension to hold the crankshaft or camshafts from turning when tightening the sprocket mounting bolts. With the belt removed, do not rotate the crankshaft and camshafts more than a few degrees (only for aligning labels).
19. Check the tensioner pulley and idler pulley bearings for seizing during rotation and excessive play. Inspect the tensioner spring for damage. If necessary, replace defective parts.
20. If the belt is severely damaged or broken during engine operation, before installing a new one, find out and eliminate the cause of damage to the old belt. These can be damaged sprocket teeth, or dirt or foreign objects stuck in the tooth cavities, or a defect in the belt itself. In any case, carefully inspect the teeth of all sprockets and clean their cavities.
21. If the old belt has torn or torn teeth (pic. 6.21), it is possible that this is the result of a jammed water or oil pump, or a camshaft.
22. If the belt has cracks or noticeable wear, look for nicks or burrs on the sprocket teeth.
23. If wear or damage is observed on only one side of the belt, check for misalignment of the belt guide, pulleys and sprockets. Also check the oil seals on the front side of the engine and replace if necessary.
24. Replace the belt if there is visible damage on it or if you have even the slightest doubt about its condition. Before installing a new belt, eliminate all causes that could lead to damage to it. Note. It is recommended to replace the belt every time it is removed, regardless of the cause, since a broken belt while the engine is running results in a very expensive repair.
Installation
25. Clean the front side of the engine in the belt area from dirt and traces of oil.
26. If the tensioner pulleys and idler were removed, reinstall them.
27. If the belt sprockets were crumpled, reinstall them. The crankshaft sprocket key should be directed with the narrow side towards the oil pump housing. Tighten the sprocket bolts to the torque specified in Technical data.
28. Align the marks on the crankshaft and camshaft sprockets (see fig. 6 12.a-c). The pointer on the crankshaft sprocket must match the mark above the pulley "I" And "E" on the camshaft sprockets must be aligned with the horizontal surface of the cylinder head.
Note. If necessary, rotate the camshafts slightly to align the marks correctly.
29. Put the belt on the crankshaft sprocket and engage the teeth of the belt with the teeth of the camshaft sprockets so. so that all the slack in the belt falls on the tensioner branch. If the belt is not being replaced, install the old belt according to the marks and arrows made during removal. If a camshaft sprocket locking tool was used during disassembly, remove it.
30. Turn the tensioner roller so that you can put its spring in (see point 15).
31. Turn the crankshaft two full turns and check that the alignment marks on the sprockets of the crankshaft and camshafts match (see fig. 6 12, a-c).
Warning! If during the rotation of the crankshaft you feel additional resistance, immediately stop the rotation. It is possible that due to incorrect installation of the valve timing, the valve rested on the piston. Check up once again correctness of installation of asterisks cranked and camshafts.
32. The rest of the parts are crumpled during assembly. install in reverse order. Start the engine and check for proper operation.
Attention! Do not start the engine unless you are 100 percent sure that the toothed belt is installed correctly. Incorrect installation of the belt will result in a long and expensive engine repair for you.